Security Engineer - Threat Intel

Anthropic · New York City, NY; Remote-Friendly (Travel-Required) | San Francisco, CA | Washington, DC; San Francisco, CA | New York City, NYRemotesenior

In short

▸Ingeniero de inteligencia de amenazas que construye herramientas y pipelines para detectar ataques sofisticados contra laboratorios de IA.
▸Trabaja diariamente con detección, respuesta a incidentes y caza de amenazas en entornos cloud, endpoints y SaaS.
▸Destaca por ser un rol de alta influencia en una pequeña y crítica unidad de defensa, con autonomía para moldar el proceso de inteligencia.

Proficiency in English is required.

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What they ask for

✓5+ años de experiencia en inteligencia de amenazas, caza de intrusiones o análisis de intrusos
✓Conocimiento profundo de actores estatales o criminales avanzados, sus herramientas y tácticas
✓Habilidades avanzadas en ingeniería: Python, automatización y construcción de pipelines
✓Experiencia en análisis de malware, infraestructura de ataque y registros (log analysis)
✓Capacidad para escribir detecciones duraderas (YARA, Sigma, SIEM o similar)
✓Habilidad para comunicar inteligencia clara y accionable a equipos técnicos

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PythonYARASigmaSnortSuricataSIEMpassive DNScertificate pivotingnetflowcloud telemetry

Who should you write to at Anthropic?

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About Anthropic Anthropic’s mission is to create reliable, interpretable, and steerable AI systems. We want AI to be safe and beneficial for our users and for society as a whole. Our team is a quickly growing group of committed researchers, engineers, policy experts, and business leaders working together to build beneficial AI systems. About the Role: Anthropic sits at the frontier of AI development, which makes us one of the most interesting targets in the world for nation-state and advanced criminal actors. The Threat Intelligence function within our Detection & Response team exists to make sure we see them coming. As a Threat Intelligence Engineer, you'll be a hands-on practitioner responsible for producing the actionable intelligence that drives our detections, hunts, and defensive priorities. You'll track the adversaries most likely to target a frontier AI lab, build the tooling and pipelines that turn raw indicators into operational defenses, and work shoulder-to-shoulder with detection engineers and incident responders to make sure intelligence actually changes outcomes. This is a builder's role on a small, high-leverage team — you'll have broad latitude to shape how threat intelligence is collected, analyzed, and operationalized at Anthropic. Responsibilities: • Research, track, and report on threat actors and campaigns targeting AI labs, cloud infrastructure, and the broader technology sector — producing timely, actionable intelligence for Security Engineering stakeholders • Build and maintain tooling and automated pipelines to collect, enrich, correlate, and operationalize indicators of compromise into our detection and alerting stack • Develop and execute intelligence-driven threat hunts across endpoint, cloud, identity, and SaaS telemetry, and turn findings into durable detections • Perform technical analysis of malware, phishing infrastructure, and attacker tooling to extract indicators, TTPs, and attribution signals • Partner with Detection Engineering and Incident Response to translate intelligence into detection rules, hunting hypotheses, and incident context in near-real-time • Curate and triage inbound intelligence from commercial feeds, open source, government, and trusted peer relationships — prioritizing what matters for Anthropic's threat model • Contribute to threat models and risk assessments that inform security architecture and defensive investment across the enterprise • Build and maintain external intelligence-sharing relationships with peer companies, ISACs, and government partners You may be a good fit if you: • Have 5+ years of hands-on experience in cyber threat intelligence, threat hunting, or intrusion analysis at an organization facing sophisticated adversaries • Have deep, demonstrable knowledge of specific nation-state or advanced criminal threat actors — their tooling, infrastructure patterns, tradecraft, and targeting • Are a strong engineer: you write production-quality Python (or similar), have built automation and data pipelines, and don't need to hand requirements to someone else to get tooling built • Are comfortable performing malware analysis, infrastructure analysis (passive DNS, certificate pivoting, netflow), and log analysis to develop and validate your own findings • Have experience authoring detection logic (YARA, Sigma, Snort/Suricata, or SIEM-native queries) and understand what makes a detection durable vs. brittle • Can write clearly and concisely — your intelligence products are read and acted on, not filed away • Have an existing network in the threat intelligence community and a track record of productive bidirectional sharing Strong candidates may have: </

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